TPS548B22 1.5V to 18V Input, 25A SWIFT™ Synchronous Step-Down Converter with Differential Remote Sense | TI.com

TPS548B22 (ACTIVE) 1.5V to 18V Input, 25A SWIFT™ Synchronous Step-Down Converter with Differential Remote Sense

1.5V to 18V Input, 25A SWIFT™ Synchronous Step-Down Converter with Differential Remote Sense - TPS548B22
Datasheet
TPS548B22 1.5-V to 18-V VIN, 4.5-V to 22-V VDD, 25-A SWIFT™ Synchronous Step-Down Converter With Full Differential Sense datasheet (Rev. A)
 

Description

The TPS548B22 device is a compact single buck converter with adaptive on-time, D-CAP3 mode control. It is designed for high accuracy, high efficiency, fast transient response, ease-of-use, low external component count, and space-conscious power systems.

This device features full differential sense, TI integrated FETs with a high-side on-resistance of 4.1 mΩ and a low-side on-resistance of 1.9 mΩ. The device also features accurate 0.5%, 0.9-V reference with an ambient temperature range between –40°C and +125°C. Competitive features include: very low external component count, accurate load regulation and line regulation, output voltage setpoint accuracy, auto-skip or FCCM mode operation, and internal soft-start control.

The TPS548B22 device is available in 7 mm × 5 mm, 40-pin, LQFN-CLIP (RVF) package (RoHs exempt).

Features

  • Conversion Input Voltage Range (PVIN): 1.5 V to 18 V
  • Input Bias Voltage (VDD) Range: 4.5 V to 22 V
  • Output Voltage Range: 0.6 V to 5.5 V
  • Integrated, 4.1-mΩ and 1.9-mΩ Power MOSFETs With 25-A Continuous Output Current
  • Voltage Reference 0.6 V to 1.2 V in 50-mV Steps Using VSEL Pin
  • ±0.5%, 0.9-VREF Tolerance Range: –40°C to +125°C Junction Temperature
  • True Differential Remote Sense Amplifier
  • D-CAP3™ Control Loop to Support Large Bulk Capacitors and/or Small MLCCs Without External Compensation
  • Adaptive On-Time Control With 4 Selectable Frequency Settings: 425 kHz, 650 kHz, 875 kHz and 1.05 MHz
  • Temperature Compensated and with Programmable Positive and Negative Current Limit and OC Clamp
  • Choice of Hiccup or Latch-Off OVP or UVP
  • VDD UVLO External Adjustment by Precision EN Hysteresis
  • Prebias Start-up Support
  • Eco-Mode and FCCM Selectable
  • Full Suite of Fault Protection and PGOOD
  • 7 mm × 5 mm × 1.5 mm, 40-Pin, Stack Clipped LQFN-CLIP Package

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WEBENCH® Designer TPS548B22

  Min   Max Range
Vin –  V 1.5 to 18.0V
Vout  V 0.6 to 5.5V
Iout  A ≤ 25A
Ambient Temp  °C -40 to 85°C

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Parametrics

Compare all products in Buck converters (integrated switch) Email Download to Excel
Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Control mode Duty cycle (Max) (%) Operating temperature range (C) Rating Package Group Type Package size: mm2:W x L (PKG)
TPS548B22 Order now 1.5     18     0.6     5.5     25     1     425     1050     2     Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable
Differential Remote Sense
Forced PWM
Over Current Protection
Soft Start Adjustable    		 D-CAP3     80     -40 to 125     Catalog     LQFN-CLIP | 40     Converter     40LQFN-CLIP: 35 mm2: 5 x 7 (LQFN-CLIP | 40)    
TPS543B20 Order now 4     19     0.6     5.5     25     1     300     2000     3     Enable
Frequency Synchronization
Over Current Protection
Phase Interleaving
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Fixed
Differential Remote Sense
Forced PWM
Soft Start Adjustable
Adjustable Current Limit    		 Current Mode     70     -40 to 125     Catalog     LQFN-CLIP | 40     Converter     40LQFN-CLIP: 35 mm2: 5 x 7 (LQFN-CLIP | 40)    
TPS543C20 Order now 4     14     0.6     5.5     40     1     300     2000     4.3     Enable
Frequency Synchronization
Over Current Protection
Phase Interleaving
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Fixed
Differential Remote Sense
Forced PWM
Soft Start Adjustable
Adjustable Current Limit    		 Current Mode     70     -40 to 125     Catalog     LQFN-CLIP | 40     Converter     40LQFN-CLIP: 35 mm2: 5 x 7 (LQFN-CLIP | 40)    
TPS544C25 Order now 4.5     18     0.5     5     30     1     200     1000     7.7     Adjustable Current Limit
Enable
Frequency Synchronization
PMBus
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable
Voltage Margining
Differential Remote Sense
Over Current Protection
Adjustable Current Limit
Forced PWM
Soft Start Adjustable    		 Voltage Mode     80     -40 to 125     Catalog     LQFN-CLIP | 40     Converter     40LQFN-CLIP: 35 mm2: 5 x 7 (LQFN-CLIP | 40)    
TPS548D22 Order now 1.5     16     0.6     5.5     40     1     425     1050     2     Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable
Differential Remote Sense
Forced PWM
Over Current Protection
Soft Start Adjustable